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Authors: Alexander Artiga Gonzalez ; Raphael Bertschinger ; Fabian Brosda ; Thorsten Dahmen ; Patrick Thumm and Dietmar Saupe

Affiliation: University of Konstanz, Germany

Keyword(s): Mathematical Modeling, Simulation, Oxygen Dynamics, Variable Work Rate.

Related Ontology Subjects/Areas/Topics: Computer Systems in Sports ; Simulation and Mathematical Modeling ; Sport Science Research and Technology

Abstract: Measurements of oxygen uptake and blood lactate content are central to methods for assessment of physical fitness and endurance capabilities in athletes. Two important parameters extracted from such data of incremental exercise tests are the maximal oxygen uptake and the critical power. A commonly accepted model of the dynamics of oxygen uptake during exercise at constant work rate comprises a constant baseline oxygen uptake, an exponential fast component, and another exponential slow component for heavy and severe work rates. We generalized this model to variable load protocols by differential equations that naturally correspond to the standard model for constant work rate. This provides the means for prediction of oxygen uptake response to variable load profiles including phases of recovery. The model parameters were fitted for individual subjects from a cycle ergometer test. The model predictions were validated by data collected in separate tests. Our findings indicate that oxygen kinetics for variable exercise load can be predicted using the generalized mathematical standard model, however, with an overestimation of the slow component. Such models allow for applications in the field where the constant work rate assumption generally is not valid. (More)

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Paper citation in several formats:
Artiga Gonzalez, A.; Bertschinger, R.; Brosda, F.; Dahmen, T.; Thumm, P. and Saupe, D. (2015). Modeling Oxygen Dynamics under Variable Work Rate. In Proceedings of the 3rd International Congress on Sport Sciences Research and Technology Support - icSPORTS; ISBN 978-989-758-159-5; ISSN 2184-3201, SciTePress, pages 198-207. DOI: 10.5220/0005607701980207

@conference{icsports15,
author={Alexander {Artiga Gonzalez}. and Raphael Bertschinger. and Fabian Brosda. and Thorsten Dahmen. and Patrick Thumm. and Dietmar Saupe.},
title={Modeling Oxygen Dynamics under Variable Work Rate},
booktitle={Proceedings of the 3rd International Congress on Sport Sciences Research and Technology Support - icSPORTS},
year={2015},
pages={198-207},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005607701980207},
isbn={978-989-758-159-5},
issn={2184-3201},
}

TY - CONF

JO - Proceedings of the 3rd International Congress on Sport Sciences Research and Technology Support - icSPORTS
TI - Modeling Oxygen Dynamics under Variable Work Rate
SN - 978-989-758-159-5
IS - 2184-3201
AU - Artiga Gonzalez, A.
AU - Bertschinger, R.
AU - Brosda, F.
AU - Dahmen, T.
AU - Thumm, P.
AU - Saupe, D.
PY - 2015
SP - 198
EP - 207
DO - 10.5220/0005607701980207
PB - SciTePress

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